ENTRY C0249 20220530 C213C024900000001 SUBENT C0249001 20220530 C213C024900100001 BIB 15 62 C024900100002 TITLE Simple nuclear reactions on Ca48 induced by high energyC024900100003 protons C024900100004 AUTHOR (I.Levenberg,V.Pokrovsky,I.Yutlandov,Rhen De-Hou, C024900100005 L.Tarasova) C024900100006 REFERENCE (J,NP,41,504,1963) Main reference. C024900100007 #doi:10.1016/0029-5582(63)90527-3 C024900100008 (J,ZET,46,1475,1964) Short summary. C024900100009 (J,JET,19,995,1964) English translation C024900100010 of J,ZET,46,1475 C024900100011 REL-REF (O,C0256001,I.Levenberg+,J,NP,51,673,1964) Sc data. C024900100012 INSTITUTE (4ZZZDUB) C024900100013 FACILITY (SYNCY,4ZZZDUB) C024900100014 SAMPLE A natural mixture of Ca isotopes was used for C024900100015 irradiation. The target was pressed in the shape of a C024900100016 rectangular wafer (15x4x1.5 mm) from calcium carbonate.C024900100017 DETECTOR (NAICR) A scintillation gamma-spectrometer having a C024900100018 NaI(TI) 40 x 40 mm crystal and a 128-channel AMA-3c C024900100019 analyser. C024900100020 METHOD (ACTIV,CHSEP) The target was irradiated in the C024900100021 internal beam of the synchrocyclotron of the Joint C024900100022 Institute for Nuclear Research for 15 to 20 min. The C024900100023 proton beam was parallel to the 1.5 mm side of the C024900100024 target. The incident proton energy was varied by C024900100025 positioning the target at different radii in the C024900100026 accelerator chamber. The irradiated target was C024900100027 dissolved in a small amount of diluted HC1 with ~ l0 C024900100028 mg of Sc carrier. After CO2 has been removed by C024900100029 boiling the solution, scandium hydroxide was C024900100030 precipitated by addition of NH4OH. Then the calcium C024900100031 and scandium fraction were purified radiochemically. C024900100032 The proton beam intensity was determined by the yield C024900100033 of the A127(p,3pn)Na24 reaction. The target was C024900100034 wrapped in three layers of 20 micron aluminum foil. C024900100035 To measure the Na24 activity, middle layers on both C024900100036 sides of the target were used. The layers had been C024900100037 cut strictly to the size of the target. The C024900100038 difference in the activities of these foils did not C024900100039 exceed 10% and amounted on the average to some 5%. C024900100040 The ratio of absolute activities of the reaction C024900100041 products and Na24 was derived by comparing the C024900100042 intensities of characteristic gamma-lines, taking C024900100043 into account the decay schemes and the efficiency of C024900100044 counting. C024900100045 MONITOR ((MONIT)13-AL-27(P,N+3P)11-NA-24,,SIG) C024900100046 MONIT-REF (,E.Bruninx,R,CERN-61-1,1961) C024900100047 DECAY-MON (11-NA-24,15.0HR,DG,1368.,1.0) C024900100048 ERR-ANALYS (DATA-ERR) The cross sections indicated are averages C024900100049 of two or three measurements with quadratic mean C024900100050 errors. The general accuracy for the cross sections C024900100051 is estimated to be about 15%. Besides, the cross C024900100052 sections contain errors due to uncertainties in the C024900100053 decay schemes and in the cross section for the C024900100054 monitoring reaction. C024900100055 STATUS (TABLE) Table II, Nucl.Phys.41,504,1963 C024900100056 HISTORY (19870520C) C024900100057 (19960422A) Reactions, BIB corrected, converted to C024900100058 lower case. C024900100059 (20210727A) BP+OS: Corrected REACTION in sub.2, C024900100060 updated references, authors and exp. methods, added C024900100061 STATUS, doi and DETECTOR, G->DG correction in C024900100062 DECAY-DATA C024900100063 (20220410A) OS. REACTION inc sub.2 modified C024900100064 ENDBIB 62 0 C024900100065 NOCOMMON 0 0 C024900100066 ENDSUBENT 65 0 C024900199999 SUBENT C0249002 20220530 C213C024900200001 BIB 4 7 C024900200002 REACTION (20-CA-48(P,X)20-CA-47,CUM,SIG) C024900200003 DECAY-DATA (20-CA-47,4.53D,DG,1300.,0.74) C024900200004 COMMENT Comment by author, Nucl. Phys. 51, 673 (1964) * Cross C024900200005 section may Be overestimated due to contribution from C024900200006 Ca48(p,2p) K47 reaction. * C024900200007 HISTORY (20210727A) Changed REACTION SF3 to X C024900200008 (20220410A) Added CUM to REACTION SF5, DATA-MAX -> DATAC024900200009 ENDBIB 7 0 C024900200010 NOCOMMON 0 0 C024900200011 DATA 4 7 C024900200012 EN DATA DATA-ERR MONIT C024900200013 MEV MB MB MB C024900200014 120. 118. 2. 10.2 C024900200015 200. 106. 10. 9.1 C024900200016 300. 106. 4. 11.0 C024900200017 400. 101. 4. 11.3 C024900200018 500. 104. 1. 11.1 C024900200019 600. 110. 8. 11.0 C024900200020 660. 110. 2. 10.9 C024900200021 ENDDATA 9 0 C024900200022 ENDSUBENT 21 0 C024900299999 SUBENT C0249003 20210727 C206C024900300001 BIB 2 2 C024900300002 REACTION (20-CA-48(P,2N)21-SC-47,,SIG) C024900300003 DECAY-DATA (21-SC-47,3.4D,DG,160.,0.67) C024900300004 ENDBIB 2 0 C024900300005 NOCOMMON 0 0 C024900300006 DATA 4 7 C024900300007 EN DATA DATA-ERR MONIT C024900300008 MEV MB MB MB C024900300009 120. 20.3 1.6 10.2 C024900300010 200. 18.6 0.6 9.1 C024900300011 300. 11.0 0.1 11.0 C024900300012 400. 8.7 0.3 11.3 C024900300013 500. 8.7 0.1 11.1 C024900300014 600. 6.2 1.0 11.0 C024900300015 660. 5.7 0.3 10.9 C024900300016 ENDDATA 9 0 C024900300017 ENDSUBENT 16 0 C024900399999 SUBENT C0249004 20210727 C206C024900400001 BIB 2 2 C024900400002 REACTION (20-CA-48(P,N)21-SC-48,,SIG) C024900400003 DECAY-DATA (21-SC-48,44.HR,DG,1315.,1.0) C024900400004 ENDBIB 2 0 C024900400005 NOCOMMON 0 0 C024900400006 DATA 4 7 C024900400007 EN DATA DATA-ERR MONIT C024900400008 MEV MB MB MB C024900400009 120. 7.8 0.3 10.2 C024900400010 200. 4.7 1.2 9.1 C024900400011 300. 4.1 0.3 11.0 C024900400012 400. 3.6 0.1 11.3 C024900400013 500. 3.9 0.2 11.1 C024900400014 600. 2.2 0.2 11.0 C024900400015 660. 2.6 0.1 10.9 C024900400016 ENDDATA 9 0 C024900400017 ENDSUBENT 16 0 C024900499999 ENDENTRY 4 0 C024999999999